Target Audience:
Owners, operators, and service technicians of Massey Ferguson 3670, 3680, and 3690 tractors seeking to perform maintenance, repairs, and diagnostics.
Manual Authenticity:
Actual genuine factory repair manuals, not third-party publications, ensuring accuracy and completeness.
Instructional Method:
Step-by-step instructions, detailed illustrations, diagrams, photos, and troubleshooting guides emulate factory-trained technician knowledge.
Usability:
Easy to use, with numbered instructions, bold figure numbers, and a clear table of contents for quick information retrieval. Search function within the PDF for efficient access.
Cost Savings:
Enables owners to perform servicing themselves, potentially saving $50-$60 per hour in shop labor costs.
General Information:
Comprehensive overview of the tractor's purpose and design principles
Specifications:
Detailed technical data and measurements for all systems
Engine:
Complete engine service, repair, and overhaul procedures
Cooling System:
Maintenance, diagnosis, and repair of the cooling system
Fuel System:
Service and repair of the fuel injection and delivery systems
Power Train:
Detailed coverage of all power transmission components
Front Axle:
Service and repair of the front axle assembly, including steering components
Clutch:
Maintenance, adjustment, and replacement of the clutch assembly
Differential Lock:
Operation, maintenance, and repair of the differential lock system
Electrical System:
Wiring diagrams, troubleshooting, and repair of all electrical components
Brakes:
Service, repair, and adjustment of the braking system
Fenders Fuel Tank Platform:
Maintenance and repair of body panels, fuel tank, and operator platform
Final Drive:
Service and overhaul of the final drive assemblies
Front System:
Coverage of front-mounted systems and components
Front Wheel Drive:
Service and repair of the FWD system
Hydraulic System:
Diagnosis, repair, and maintenance of the hydraulic lift and auxiliary systems
Main Drive Bevel Gears And Differential:
Detailed coverage of the main drive bevel gears and differential housing
Park Brake:
Service and adjustment of the parking brake mechanism
Power Steering System:
Maintenance, troubleshooting, and repair of the power steering system
Power Take Off:
Service and repair of the PTO system, including engagement and speeds
Rear Axle:
Service and overhaul of the rear axle and associated components
Steering Gear:
Repair and adjustment of the steering gear mechanism
Transmission:
Complete service and repair of the transmission, including gearboxes and shifters
Estimated Page Count:
Hundreds of pages (exact count not specified, but comprehensive)
Type:
Factory Service Repair Manual
Digital Format:
PDF Download
Engine Systems:
Engine disassembly, assembly, diagnostics, performance tuning, and component replacement (e.g., pistons, rings, bearings, cylinder heads).
Fuel And Ignition Systems:
Fuel injection system calibration, pump and injector service, fuel filter replacement, troubleshooting fuel delivery issues.
Cooling And Lubrication Systems:
Radiator, water pump, thermostat service, oil pump, lubrication passages, fluid capacities and specifications.
Drivetrain And Transmission:
Detailed procedures for transmission overhaul, clutch replacement, differential service, axle repair, and final drive maintenance.
Hydraulic Systems:
Hydraulic pump testing, cylinder repair, valve body service, diagnostic procedures for hydraulic lift and auxiliary systems.
Electrical And Electronic Systems:
Comprehensive wiring diagrams, troubleshooting guides for starter, alternator, lighting, and control systems.
Braking And Steering Systems:
Brake caliper and master cylinder service, bleeding procedures, power steering pump and cylinder repair, steering linkage adjustments.
Operator Station And Body:
Fender, fuel tank, platform, cab component service, body panel repair, and fastener torque specifications.
Cooling And Heating Systems:
Service for the radiator, coolant hoses, thermostat, water pump, and any associated heater circuits for the cabin.
Exhaust System:
Maintenance and inspection of the exhaust manifold, muffler, and exhaust piping.
Wheel And Tire Service:
Information on wheel bearing maintenance, tire pressure specifications, and potentially front-wheel drive hub service.
Routine Maintenance:
Oil changes, filter replacements, lubrication points, inspection schedules.
Troubleshooting:
Systematic diagnostic trees and guides for identifying and rectifying common and uncommon issues.
Repair And Overhaul:
Step-by-step instructions for disassembling, repairing, reassembling, and adjusting all major components and systems.
Component Rebuilding:
Detailed instructions for rebuilding engines, transmissions, hydraulic pumps, and other critical components.
Electrical Diagnostics:
Using multimeters, oscilloscopes, and diagnostic tools to identify electrical faults and system malfunctions.
Alignment And Adjustment:
Procedures for setting valve clearances, adjusting clutch engagement, steering alignment, and brake pedal free play.
Engine Timing And Synchronization:
Procedures for setting engine timing, valve synchronization, and injection pump timing will be present.
Depth:
Extremely detailed, covering all aspects from basic maintenance to complete component overhauls and advanced diagnostics. Suitable for professional technicians and experienced owners.
Engine Oil Change Interval:
Typical intervals of 250-500 hours, with specific recommendations and oil types detailed in the manual.
Hydraulic Fluid Change Interval:
Generally every 500-1000 hours, or as per manual recommendations based on operating conditions.
Engine Oil Grade:
Likely API CD or CE rated diesel engine oil, with viscosity grades like 15W-40 or 10W-30 specified based on ambient temperature.
Hydraulic Fluid Type:
Typically ISO VG 46 hydraulic oil or a universal tractor transmission fluid (UTTF) with appropriate specifications.
Transmission Fluid Type:
Specific transmission fluid type and grade will be listed, likely compatible with the hydraulic system if it's a shared reservoir.
Common Wear Items:
Clutch wear, hydraulic pump efficiency degradation over time, and potential electrical connection corrosion are common areas of focus.
Troubleshooting Focus Areas:
The manual's troubleshooting section will address common issues like starting problems, hydraulic system sluggishness, and transmission engagement difficulties.
